uvm_fault(0xfffffd8066e73768, 0x18ff000008, 0, 1) -> e kernel: page fault trap, code=0 Stopped at witness_checkorder+0x1ec: movl 0x8(%r14),%ebx TID PID UID PRFLAGS PFLAGS CPU COMMAND 305441 38689 0 0x14000 0x200 0 reaper witness_checkorder(fffffd806f245298,9,0) at witness_checkorder+0x1ec sys/kern/subr_witness.c:794 mtx_enter(fffffd806f245288) at mtx_enter+0x3e sys/kern/kern_lock.c:265 knote_remove(ffff800021cc6aa8,fffffd806f245288,fffffd806f245310,3,0) at knote_remove+0x20d sys/kern/kern_event.c:1881 knote_fdclose(ffff800021cc6aa8,3) at knote_fdclose+0xae sys/kern/kern_event.c:1934 fdfree(ffff800021cc6aa8) at fdfree+0xdf sys/kern/kern_descrip.c:1196 exit1(ffff800021cc6aa8,0,0,1) at exit1+0x3e4 sys/kern/kern_exit.c:206 sys_exit(ffff800021cc6aa8,ffff80002e443110,ffff80002e443160) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002e4431e0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e4431e0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77df26428510, count: 6 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xfffffd8066e73768, 0x18ff000008, 0, 1) -> e ddb{1}> trace witness_checkorder(fffffd806f245298,9,0) at witness_checkorder+0x1ec sys/kern/subr_witness.c:794 mtx_enter(fffffd806f245288) at mtx_enter+0x3e sys/kern/kern_lock.c:265 knote_remove(ffff800021cc6aa8,fffffd806f245288,fffffd806f245310,3,0) at knote_remove+0x20d sys/kern/kern_event.c:1881 knote_fdclose(ffff800021cc6aa8,3) at knote_fdclose+0xae sys/kern/kern_event.c:1934 fdfree(ffff800021cc6aa8) at fdfree+0xdf sys/kern/kern_descrip.c:1196 exit1(ffff800021cc6aa8,0,0,1) at exit1+0x3e4 sys/kern/kern_exit.c:206 sys_exit(ffff800021cc6aa8,ffff80002e443110,ffff80002e443160) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002e4431e0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e4431e0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77df26428510, count: -9 ddb{1}> show registers rdi 0 rsi 0x20000 acpi_pdirpa+0xbe63 rbp 0xffff80002e442eb0 rbx 0xe rdx 0 rcx 0xffff800021cc6aa8 rax 0xffff800020d58ff0 r8 0x1 r9 0x1 r10 0xdb2e98e98c33b83e r11 0x4cf0548b4e4444fe r12 0 r13 0xfffffd806f245298 r14 0x18ff000000 r15 0xffff800021cc6aa8 rip 0xffffffff81ef9c8c witness_checkorder+0x1ec cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002e442e00 ss 0x10 witness_checkorder+0x1ec: movl 0x8(%r14),%ebx ddb{1}> show proc PROC (syz-executor.5) pid=170707 stat=onproc flags process=1018 proc=2000 pri=0, usrpri=83, nice=20 forw=0xffffffffffffffff, list=0xffff80002126e7f8,0xffff800021277ac0 process=0xffff8000ffff5938 user=0xffff80002e43e000, vmspace=0xfffffd8066e73768 estcpu=36, cpticks=3, pctcpu=0.0 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 71403 411987 89513 32767 2 0x10 syz-executor.0 64111 339736 2146 32767 2 0x10 syz-executor.6 2146 247163 35033 0 3 0x82 wait syz-executor.6 21407 168907 87082 32767 2 0x10 syz-executor.3 87082 281045 35033 0 3 0x82 wait syz-executor.3 9211 103703 94201 32767 3 0x90 nanoslp syz-executor.1 94201 276832 35033 0 3 0x82 wait syz-executor.1 61088 285158 81925 32767 3 0x90 nanoslp syz-executor.4 81925 472015 35033 0 3 0x82 wait syz-executor.4 83877 56310 0 0 3 0x14200 bored sosplice 40962 277854 92539 32767 3 0x90 nanoslp syz-executor.7 92539 106343 35033 0 3 0x82 wait syz-executor.7 55658 22582 93360 32767 3 0x90 nanoslp syz-executor.5 93360 145906 35033 0 3 0x82 wait syz-executor.5 24932 59667 27061 32767 2 0x10 syz-executor.2 27061 101212 35033 0 3 0x82 wait syz-executor.2 89513 432987 45904 32767 2 0x10 syz-executor.0 45904 392627 35033 0 3 0x82 wait syz-executor.0 35033 286089 55841 0 3 0x2000082 wait syz-fuzzer 35033 231343 55841 0 3 0x6000082 nanoslp syz-fuzzer 35033 75450 55841 0 3 0x6000082 wait syz-fuzzer 35033 319170 55841 0 3 0x6000082 wait syz-fuzzer 35033 155391 55841 0 3 0x6000082 wait syz-fuzzer 35033 406615 55841 0 3 0x6000082 thrsleep syz-fuzzer 35033 181402 55841 0 3 0x6000082 thrsleep syz-fuzzer 35033 95906 55841 0 3 0x6000082 thrsleep syz-fuzzer 35033 500401 55841 0 3 0x6000082 wait syz-fuzzer 35033 129935 55841 0 3 0x6000082 wait syz-fuzzer 35033 427753 55841 0 3 0x6000082 thrsleep syz-fuzzer 35033 468614 55841 0 3 0x6000082 thrsleep syz-fuzzer 35033 353725 55841 0 3 0x6000082 kqread syz-fuzzer 35033 523325 55841 0 3 0x6000082 wait syz-fuzzer 35033 206524 55841 0 3 0x6000082 wait syz-fuzzer 35033 434075 55841 0 3 0x6000082 thrsleep syz-fuzzer 55841 457082 8202 0 3 0x10008a sigsusp ksh 8202 132804 93260 0 2 0x12 sshd 77273 156142 1 0 3 0x100083 ttyin getty 93260 470726 1 0 3 0x88 kqread sshd 58418 478879 59079 73 3 0x1100090 kqread syslogd 59079 32651 1 0 3 0x100082 netio syslogd 66948 457757 1 0 3 0x100080 kqread resolvd 12729 32060 80952 77 3 0x100092 kqread dhcpleased 17182 284446 80952 77 3 0x100092 kqread dhcpleased 80952 49090 1 0 3 0x80 kqread dhcpleased 20317 175290 0 0 3 0x14200 bored smr 72413 190346 0 0 2 0x14200 zerothread 20710 294466 0 0 3 0x14200 aiodoned aiodoned 7916 360569 0 0 3 0x14200 syncer update 74570 516512 0 0 3 0x14200 cleaner cleaner 38689 305441 0 0 7 0x14200 reaper 24901 94510 0 0 3 0x14200 pgdaemon pagedaemon 2363 151795 0 0 3 0x14200 bored viomb 61580 441633 0 0 3 0x40014200 acpi0 acpi0 77551 397971 0 0 3 0x40014200 idle1 14013 196936 0 0 3 0x14200 bored softnet3 35606 26075 0 0 3 0x14200 bored softnet2 61542 295967 0 0 3 0x14200 bored softnet1 80485 397806 0 0 3 0x14200 bored softnet0 73956 479038 0 0 3 0x14200 bored systqmp 96744 23804 0 0 3 0x14200 bored systq 61036 424288 0 0 3 0x40014200 bored softclock 50819 183987 0 0 3 0x40014200 idle0 1 19910 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 71403 (syz-executor.0) thread 0xffff800021277ab0 (411987) exclusive rwlock amaplk r = 0 (0xfffffd8070e52198) #0 witness_lock+0x447 #1 uvm_fault_check+0x41a sys/uvm/uvm_fault.c:782 #2 uvm_fault+0xf2 sys/uvm/uvm_fault.c:600 #3 upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 #4 usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 #5 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd8066e73120) #0 witness_lock+0x447 #1 uvmfault_lookup+0xd9 sys/uvm/uvm_fault.c:1785 #2 uvm_fault_check+0x3e sys/uvm/uvm_fault.c:672 #3 uvm_fault+0xf2 sys/uvm/uvm_fault.c:600 #4 upageflttrap+0x86 sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x226 sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10188 6408K 6420K 78643K 11290 0 pcb 13 12K 14K 78643K 17 0 rtable 240 6K 7K 78643K 714 0 pf 29 8K 8K 78643K 45 0 ifaddr 44 15K 15K 78643K 80 0 ifgroup 50 2K 2K 78643K 82 0 sysctl 3 1K 1K 78643K 3 0 counters 60 35K 35K 78643K 76 0 ioctlops 0 0K 2K 78643K 43 0 iov 0 0K 16K 78643K 236 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1278 80K 80K 78643K 1808 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 62 0 VM map 2 1K 1K 78643K 2 0 sem 11 1K 1K 78643K 24 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 20 73K 121K 78643K 4058 0 sigio 0 0K 0K 78643K 381 0 proc 56 78K 115K 78643K 949 0 subproc 104 6K 6K 78643K 208 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 176 0 in_multi 99 7K 7K 78643K 229 0 ether_multi 1 0K 0K 78643K 6 0 mrt 2 0K 0K 78643K 2 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 67 307K 307K 78643K 67 0 exec 0 0K 1K 78643K 1155 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 365 95K 108K 78643K 41732 0 UVM aobj 131 4K 4K 78643K 133 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 119 0 NDP 11 0K 2K 78643K 51 0 temp 74 5920K 6000K 78643K 14298 0 kqueue 12 18K 24K 78643K 341 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 205 0 202 3 2 1 3 0 8 0 rtentry 112 205 0 92 4 0 4 4 0 8 0 unpcb 144 1572 0 1559 16 15 1 8 0 8 0 syncache 304 53 0 53 9 8 1 1 0 8 1 tcpqe 32 145 0 145 7 6 1 1 0 8 1 tcpcb 808 4350 0 4343 59 51 8 15 0 8 7 arp 120 35 0 16 1 0 1 1 0 8 0 ipq 40 2 0 2 1 1 0 1 0 8 0 ipqe 40 7 0 7 1 1 0 1 0 8 0 inpcb 368 6872 0 6854 56 48 8 14 0 8 6 nd6 136 53 0 27 1 0 1 1 0 8 0 kcovpl 48 16 0 8 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 830 0 366 29 0 29 29 0 8 0 art_table 32 831 0 366 4 0 4 4 0 8 0 art_node 16 204 0 101 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 14 0 5 1 0 1 1 0 8 0 shmpl 112 130 0 2 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 6247 0 4803 91 0 91 91 0 8 0 ffsino 272 6247 0 4803 97 0 97 97 0 8 0 nchpl 144 11523 0 9879 63 0 63 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 39112 0 39112 4 3 1 2 0 8 1 percpumem 16 51 0 8 1 0 1 1 0 8 0 kstatmem 264 38 0 16 2 0 2 2 0 8 0 scxspl 216 32751 0 32751 11 10 1 8 1 8 1 plimitpl 152 619 0 596 6 5 1 2 0 8 0 sigapl 424 4338 0 4286 7 0 7 7 0 8 0 futexpl 64 36999 0 36999 3 2 1 1 0 8 1 knotepl 120 360 0 0 10 1 9 10 0 8 0 kqueuepl 216 625 0 617 9 8 1 5 0 8 0 pipepl 320 1478 0 1450 34 31 3 8 0 8 0 fdescpl 496 4320 0 4289 7 2 5 6 0 8 0 filepl 152 28391 0 28155 56 43 13 19 0 8 3 lockfpl 104 532 0 530 1 0 1 1 0 8 0 lockfspl 48 160 0 158 1 0 1 1 0 8 0 sessionpl 144 31 0 15 1 0 1 1 0 8 0 pgrppl 48 118 0 102 1 0 1 1 0 8 0 ucredpl 104 2904 0 2886 1 0 1 1 0 8 0 zombiepl 144 4290 0 4286 1 0 1 1 0 8 0 processpl 1072 4338 0 4286 5 1 4 5 0 8 0 procpl 680 11372 0 11305 14 6 8 8 0 8 1 sosppl 168 74 0 72 6 5 1 1 0 8 0 sockpl 488 8905 0 8877 105 94 11 30 0 8 7 mcl64k 65536 18 0 0 3 1 2 3 0 8 0 mcl16k 16384 17 0 0 3 0 3 3 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 13 0 0 1 0 1 1 0 8 0 mcl8k 8192 25 0 0 4 1 3 3 0 8 0 mcl4k 4096 36 0 0 3 0 3 3 0 8 0 mcl2k2 2112 6 0 0 1 0 1 1 0 8 0 mcl2k 2048 275 0 0 32 3 29 32 0 8 0 mtagpl 96 4 0 0 1 0 1 1 0 8 0 mbufpl 256 1233 0 0 75 0 75 75 0 8 0 bufpl 288 8695 0 2369 452 0 452 452 0 8 0 anonpl 24 554165 0 542997 190 103 87 119 0 186 5 amapchunkpl 152 146242 0 145412 68 28 40 51 0 158 1 amappl16 200 13563 0 13280 103 81 22 41 0 8 6 amappl15 192 23 0 22 1 0 1 1 0 8 0 amappl14 184 170 0 159 2 1 1 2 0 8 0 amappl13 176 16 0 15 1 0 1 1 0 8 0 amappl12 168 5079 0 5043 2 0 2 2 0 8 0 amappl11 160 53 0 43 1 0 1 1 0 8 0 amappl10 152 32 0 22 1 0 1 1 0 8 0 amappl9 144 189 0 188 2 1 1 1 0 8 0 amappl8 136 335 0 244 4 0 4 4 0 8 0 amappl7 128 78 0 63 2 1 1 2 0 8 0 amappl6 120 302 0 282 2 1 1 2 0 8 0 amappl5 112 263 0 254 1 0 1 1 0 8 0 amappl4 104 679 0 641 3 1 2 3 0 8 0 amappl3 96 26338 0 26263 3 0 3 3 0 8 0 amappl2 88 4744 0 4675 3 1 2 3 0 8 0 amappl1 80 23995 0 23472 22 9 13 22 0 8 0 amappl 88 41039 0 40807 7 0 7 7 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 132 0 2 3 0 3 3 0 8 0 uaddrrnd 24 4320 0 4289 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4320 0 4289 1 0 1 1 0 8 0 vmmpekpl 168 39142 0 39082 3 0 3 3 0 8 0 vmmpepl 168 270824 0 268643 160 50 110 128 0 357 4 vmsppl 464 4319 0 4289 7 2 5 6 0 8 0 rwobjpl 56 79323 0 71966 113 7 106 107 0 8 0 pdppl 4096 8648 0 8578 276 194 82 94 0 8 12 pvpl 32 1390481 0 1373535 382 220 162 362 0 265 4 pmappl 248 4319 0 4289 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1205 0 309 26 0 26 26 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82c05ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff82ca0020) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82ca0020) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff8000211b91a0,ffff80000067b200) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge25_untramp() at Xintr_ioapic_edge25_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x30 kd_curproc sys/dev/kcov.c:590 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x30 sys/dev/kcov.c:158 witness_checkorder(ffffffff82b7f740,9,0) at witness_checkorder+0x38 sys/kern/subr_witness.c:770 mtx_enter(ffffffff82b7f730) at mtx_enter+0x3e sys/kern/kern_lock.c:265 msleep(ffffffff82c57e80,ffffffff82b7f730,4,ffffffff82859cc1,0) at msleep+0x1f1 sys/kern/kern_synch.c:239 reaper(ffff8000211b2ff8) at reaper+0xdb sys/kern/kern_exit.c:437 end trace frame: 0x0, count: 4 ddb{0}> trace x86_ipi_db(ffffffff82c05ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff82ca0020) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82ca0020) at __mp_lock+0x122 sys/kern/kern_lock.c:147 intr_handler(ffff8000211b91a0,ffff80000067b200) at intr_handler+0x62 sys/arch/amd64/amd64/intr.c:532 Xintr_ioapic_edge25_untramp() at Xintr_ioapic_edge25_untramp+0x18f __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x30 kd_curproc sys/dev/kcov.c:590 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x30 sys/dev/kcov.c:158 witness_checkorder(ffffffff82b7f740,9,0) at witness_checkorder+0x38 sys/kern/subr_witness.c:770 mtx_enter(ffffffff82b7f730) at mtx_enter+0x3e sys/kern/kern_lock.c:265 msleep(ffffffff82c57e80,ffffffff82b7f730,4,ffffffff82859cc1,0) at msleep+0x1f1 sys/kern/kern_synch.c:239 reaper(ffff8000211b2ff8) at reaper+0xdb sys/kern/kern_exit.c:437 end trace frame: 0x0, count: -11 ddb{0}> machine ddbcpu 1 Stopped at witness_checkorder+0x1ec: movl 0x8(%r14),%ebx witness_checkorder(fffffd806f245298,9,0) at witness_checkorder+0x1ec sys/kern/subr_witness.c:794 mtx_enter(fffffd806f245288) at mtx_enter+0x3e sys/kern/kern_lock.c:265 knote_remove(ffff800021cc6aa8,fffffd806f245288,fffffd806f245310,3,0) at knote_remove+0x20d sys/kern/kern_event.c:1881 knote_fdclose(ffff800021cc6aa8,3) at knote_fdclose+0xae sys/kern/kern_event.c:1934 fdfree(ffff800021cc6aa8) at fdfree+0xdf sys/kern/kern_descrip.c:1196 exit1(ffff800021cc6aa8,0,0,1) at exit1+0x3e4 sys/kern/kern_exit.c:206 sys_exit(ffff800021cc6aa8,ffff80002e443110,ffff80002e443160) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002e4431e0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e4431e0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77df26428510, count: 6 ddb{1}> trace witness_checkorder(fffffd806f245298,9,0) at witness_checkorder+0x1ec sys/kern/subr_witness.c:794 mtx_enter(fffffd806f245288) at mtx_enter+0x3e sys/kern/kern_lock.c:265 knote_remove(ffff800021cc6aa8,fffffd806f245288,fffffd806f245310,3,0) at knote_remove+0x20d sys/kern/kern_event.c:1881 knote_fdclose(ffff800021cc6aa8,3) at knote_fdclose+0xae sys/kern/kern_event.c:1934 fdfree(ffff800021cc6aa8) at fdfree+0xdf sys/kern/kern_descrip.c:1196 exit1(ffff800021cc6aa8,0,0,1) at exit1+0x3e4 sys/kern/kern_exit.c:206 sys_exit(ffff800021cc6aa8,ffff80002e443110,ffff80002e443160) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002e4431e0) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e4431e0) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x77df26428510, count: -9